{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{4}{c}{\specialcell{\;\;\;\;\; Change in source fecal contamination \;\;\;\;\;}}\\\cmidrule(lr){2-5}
                    &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   &\multicolumn{1}{c}{(4)}   \\
\hline
Predicted change    &       0.158** &       0.142*  &       0.045   &       0.010   \\
source fecal contamination x treated&     (0.065)   &     (0.076)   &     (0.073)   &     (0.078)   \\
Predicted change    &       5.381***&       5.283***&       6.225***&       6.363***\\
source fecal contamination&     (0.367)   &     (0.427)   &     (0.408)   &     (0.428)   \\
Travel time in      &      -0.024***&      -0.018***&      -0.017** &      -0.011   \\
minutes, reported   &     (0.008)   &     (0.006)   &     (0.009)   &     (0.007)   \\
Constant            &       0.012   &       0.010***&       0.023** &       0.022***\\
                    &     (0.011)   &     (0.002)   &     (0.011)   &     (0.002)   \\
\hline
Predicted location  &        Desk   &        Desk   &   Algorithm   &   Algorithm   \\
Treatment unit fixed effects&          No   &         Yes   &          No   &         Yes   \\
R$^2$               &        0.20   &        0.28   &        0.22   &        0.30   \\
N                   &        5729   &        5729   &        5729   &        5729   \\
\hline\hline
\end{tabular}
}
